Hi,
I am about to buy Bowens Gemini 400/400 studio light kit. But I do not fully understand sync cables. Up till now I have only ever used hot shoe flashes so am a bit of a newbie to professional studio kits. Am I able to use sync cables with my 550d and how do I connect two cables to my camera?

I don't think the 550D has a PC sync port (check your manual), but you can always buy a hotshoe PC sync adapter (shouldn't be too expensive).
Do check the trigger voltage of your strobes though, Canons don't like high voltages.

_________________I take pictures so quickly, my highschool was "Continuous High".

Thanks for the links. I am now considering using my one light set up which uses my 430ex ii aswell as the strobes to make a three light set up. However how would I trigger them all simultaneously. Is it possible to trigger strobes and hot shoe flashes together?

This one is made by interfit so would it work with bowens and canon lights? Also does the 430ex ii work with infa-red triggering. I was looking at the bowens website but all there methods of triggering where very expensive!